{"id":148,"date":"2020-06-06T13:28:46","date_gmt":"2020-06-06T13:28:46","guid":{"rendered":"https:\/\/danwritescode.com\/?p=148"},"modified":"2020-06-06T13:28:48","modified_gmt":"2020-06-06T13:28:48","slug":"javascript-interview-questions","status":"publish","type":"post","link":"https:\/\/danwritescode.com\/javascript-interview-questions\/","title":{"rendered":"Javascript Interview Questions"},"content":{"rendered":"\n<p>This is a collection of common Javascript interview questions you may need to answer. <br>I wrote a post for each of them explaining them in natural language. <br>Enjoy!<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Basic Javascript questions<\/h2>\n\n\n\n<ul><li>Call bind apply<\/li><li>Closure<\/li><li>Prototype<\/li><li>Difference between arrow and normal function<\/li><li>Map ,Filter, Reduce<\/li><li>The Event Loop<\/li><li>Map and Set data structure<\/li><li>How to Compare object is equal or not<\/li><li>Literals<\/li><li>Hoisting<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Asynchronous Javascript Land<\/h2>\n\n\n\n<ul><li><a href=\"https:\/\/danwritescode.com\/how-does-asynchronous-javascript-work\/\" class=\"rank-math-link\">Explain how Asynchronous Javascript works<\/a><\/li><li><a href=\"https:\/\/danwritescode.com\/what-happens-in-the-event-loop-when-we-run-asynchronous-javascript-code\/\" class=\"rank-math-link\">What happens in the Event Loop when we run Asynchronous Javascript code?<\/a><\/li><li>Async<\/li><li>Async await<\/li><li>Promises<\/li><li>Callback hell<\/li><li>How would you use <a href=\"https:\/\/danwritescode.com\/async-await-with-array-prototype-map-whats-the-trick\/\" class=\"rank-math-link\">Async with map<\/a><\/li><li>How would you use Async with foreach each<\/li><li>async.waterfall<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Advanced javascript questions<\/h2>\n\n\n\n<ul><li>Babel<\/li><li>Generator Function<\/li><li>Scaling &#8211; Horizontal &amp; Vertical<\/li><li>Middleware<\/li><li>Cluster and Child threading<\/li><li>Encrypt techniques<\/li><li>Design patterns<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Node Basic questions<\/h2>\n\n\n\n<ul><li>Architecture of NodeJs<\/li><li>Event Emitter<\/li><li>When NodeJs is used<\/li><li>Security &#8211; Node App<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Sample challenges<\/h3>\n\n\n\n<ul><li>Angram problem variations<\/li><li>[95,9,7,4,3] make it max no. and original value should not change 995743<\/li><li>Find string is a palindrome or not if not then find possibility of making palindrome and<br>return true and false eg: aabbbcc- true, MADAM- true, abca-false<\/li><li>[1,2,3,5,7,7,,8,9&#8212;-nth] find missing and duplicate number in sequence and return value<\/li><li>Write a sum function with this call signature: sum(a)(b)<br>&#8211; shortest possible form<br>&#8211; explain the theorical concept behind this.<br>&#8211; explain some practical use<br><br><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>This is a collection of common Javascript interview questions you may need to answer. I wrote a post for each of them explaining them in natural language. Enjoy! Basic Javascript questions Call bind apply Closure Prototype Difference between arrow and normal function Map ,Filter, Reduce The Event Loop Map and Set data structure How to Compare object is equal or not Literals Hoisting Asynchronous Javascript Land Explain how Asynchronous Javascript works What happens in the Event Loop when we run Asynchronous Javascript code? Async Async await Promises Callback hell How would you use Async with map How would you use <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,10,11],"tags":[],"_links":{"self":[{"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/posts\/148"}],"collection":[{"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/comments?post=148"}],"version-history":[{"count":0,"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/posts\/148\/revisions"}],"wp:attachment":[{"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/media?parent=148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/categories?post=148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/danwritescode.com\/wp-json\/wp\/v2\/tags?post=148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}